Sawmill set-works.



T. s. WILKIN.

SAWMILL SET WORKS.

APPLICATION FILED NOV. 18. 1903.

a SHEETS-SHEET 1.

PATBNTED MAR. 20, 1906.

No. a15,6a5. PATENTBD MAR.'20,1'906.

` T. s. WILKIN.

.SAWMILL SET WORKS; APILIATION FILED NOV.18, 1903.

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h l .r. I. NN QM. #n ,1, .-L n Unull wm v y@ 75L/M www No.'815,ss5.-PATBNTBD MAR. 20.1906.

T. s. WILKIN.

SAWMILL SET WORKS.

- APPLIOATION FILED Nov.1s. 190s.

3 SHEETS-SHEET 3- MILWAUKEE, .,WIQQNSlN- aft NTTD STATES PATENT OFFICEstated that the sleeve 18, with the pinion 19 and the two end femalefriction-wheels 2O and 21, are all rigidly connected together and areloosely mounted on the driven shaft and capable of slight longitudinalmovement thereon. The pinion 19 meshes with a large toothed wheel 23 onthe set-shaft 9 and is somewhat wider than said wheel 23,- so that themeshing engagement may be maintained notwithstanding the movementlongitudinally of the sleeve on the driven shaft.

Mounted on the main or driven shaft 14 so as to rotate therewith, but tohave a slight longitudinal movement thereon, preferably by beingfeathered en said shaft, is a male friction-wheel 24, and a coperatingfemale friction-wheel 25v is mounted loosely on said, shaft. This femalefriction-wheel 25 has aI sleeve 26 projecting therefrom, and con' nectedto this sleeve is a crank 27. The outer end of the crank has pivotallyconnected thereto a link 28, said link at its opposite end beingpivotally connected by a pivot-pin 29 shaft 41.

'to a radial bar 30. Another radial bar 30 is also connected to thepivot pin 29. The pivot-pin 29 preferably works in a segmental slot 31.The radial bar 30 is anchored to the frame at the point 32, and theother radial bar 30 is pivotally connected to a knucklejoint consistingof arms 33 and 34, respectively. `The opposite end of arm 33 ispivotally connected to an operating-lever 35 by means of a pivot-pin36,. which pin may, if desired, ride in a segmental slot 37. The lever35 swings 4over a notched segment 38, the notches thereof being agraduated distance apart. The said lever carries a spring-dog 39, whichis adapted to engage with any of the notches of the segment. The arm 34of the knuckle is pivotally connected to the outer end of a crank 40,mounted on a rock- This rock-shaft has short arms 42 42 radiatingtherefrom in opposite directions, and to these short arms are connectedlonger arms 43 43, which carry pawls 44 44, adapted to engage the teethof a ratchet-wheel 45, 'mounted on the set-shaft 9, whereby the rockingmovement of the rock-shaft is converted into a rotarymovement of theset-shaft.

1n order to enable the rock-shaft 41 to be rocked, and thereby opegateto rotate the setshaft, it is necessary that means should be providedfor throwing the friction-wheels 24 and 25 into -frictional engagementin order to lock the female friction-wheel 25 to the main shaft 14, sothat the crank 27, which is connected to the sleeve'26, projecting fromsaid female friction-wheel 25, will be operated. For this purpose 1employ a lever and coperating parts which are arranged in such novelmanner as not only to effect the function just referred to-that is, thelocking together frictionally of the two wheels 24 and 25-but also toaccomplish this merely by a single manipulation of the lever andproviding for the crank 27 thereafter making a single completerevolution and automatically stopping at the dead-center without anyfurther attention on the part of the operator. The lever referred to isindicated by the numeral 46. This lever is pivoted at the point 47.Connected to this lever pivotally is a link 48, and this link in turn ispivoted to a crank 49, said crank being mounted on one end of a shaft50. The shaft 50 extends in a transverse direction, and. on this shaftare two other arms 51. The male friction-wheel 24 is provided with aprojecting hub 52, and this hub is provided with an annular groove 53,in which groove is fitted an annular collar 54. This collar is projectedout laterally in opposite directions, as indicated by the numerals 5555, and the two projecting arms of the shaft 50 are connected to theseprojections. It will be seen from the described connection that the malefrictionwheel 24 is capable of rotation with the shaft, but that yetwhen the lever 46 is turned in one direction the said friction wheelwill be moved longitudinally, so as to be brought into firm engagementwith the female frictionwheel 25, and when the lever 46 is moved in theopposite direction the said male frictionwheel 24 will be moved out ofengagement with the female friction wheel 25. The mechanism forpermitting but one revolution of the crank 27 and the stopping of saidcrank at the dead-center with but the necessity of a single movement ofthe lever 46 by the operator comprises, specifically, a roller 56,carried by the lever 46 and normally engaging a recess 57 on the side ofthe frictionwheel 25. When the lever 46 is operated in a direction tothrow the two wheels 24 and 25 into frictional engagement, the roller 56is withdrawn from the recess 57 and then rides upon the unrecessedportion of the wheel 25, and thereby not only serves to push the wheel25 into firmer frictional engagement with the wheel 24, but also acts tolock said wheels in their engaging adjustment. In view of the fact thatthe friction 24` which is rotatable with the shaft 14, is now locked tothe frictionwheel 25 which is normally loose on the shaft 14, it isevident that the rotation of said sli aft 14 is imparted to thefriction-wheel 25, and as theI sleeve 26 of this friction-wheel carriesthe crank 27 the said crank will be rotated with the friction-wheel 25.This rotation of the friction-wheel 25 and the crank will continueduring the period of one complete revolution of the friction-wheel 25.It is automatically stopped upon the completion of one revolution by theengagement of the roller 56 with the recess 57, which necessarily causesa slight turning of the lever 46 on its pivot in a direction to throwthe two frictionwheels 24 and 25 out of frictional locking engagement.1n order to guard against any possibility of the roller by reason of themomentum riding out of the recess 57 upon the IOO IIC

` rol ZOZ nected at its oppositeendtoFalcranki62. The" completionaof.one-revolution `of the wheel2s25,`

Ii provideitherlever 462with a-stop 58,.Awhich is adapted to engage witha shoulder 59,.for-med?V onth'e faceiof the frietion-wheelf 25".l

The: aboivef constitutes a completer descrip?- tion= ofthemechanismwhereby7V the rota-tion ofI the.l main shaft 114 is utilized'to cause the rotationV of thefseteshaft 9:y Itwiflll beffrapparsentifromV the: description` heretoforeffF given".V

that when theffriction-wheel- 2'5 is rotated@ the: crank'. 27, mountedonthe end. of the sleeve.x

26, will also-berotated, andthis crank, through the medium of` the linksyand lever connes-fl tions-z between it and the crank on;v therockshaft,:will=. cause al lrocl'ringr`- of saidro'ck-shaft, yandithefrocking ot the rock-shaft through the medium ofthe pawls44,1carried bythe arms 43.' and engaging the ratchet-wheel" 45, will.cause a rotation ofthe set-shaft.

As stated: at the outset ofi-thisspecification,.itifis.\oneofitheobjects*ofthe'presentins' vention.` to'-provide a means whereby the kneesare movedy forward, slowly toI any?`eX- tent independent'l ofthe positive setting` device and then returnedafter the sawing. ope eration. very', quickly to a desired". rearwarddistance, whereby the veryv sl'owand tediousoperationlheretofore:necessary ofi moving ther regulating-lever tof therequired notch". in" they segment.' and I then waiting fori'` the crank.which: connec'tslthe main shaft: to the'v rocke shatt tofmakeacompleterevolultion inorder' to provide for settingtofractions' ofaninchf is thereby avoided; This-object of my in 1 vention -is attainedthrough the medium of ai leverewhi'ch` operates.` to' move the sleeve 18longitudinally' on. thel shaft 1.4, and thereby bringY thel female,friction-wheel: 20 into en@A gagement. with the Imalefrictioniwheel 17or' thlewfemale -frictionswheel 2 1 Vinto lengagement with the malelfriction-wheel 22,A inV accord-- ance with the direction ofV movementlofthesleeve 1.8, as determined by the direction inl which the vlever'Areferred tofisfswungr. Thisy lever'is'-` indicated ini the.4v drawingsbythe nu-y merallO; Thisl'ev'enis pivotedonfthe pivotpin147 and extendsdownwardly' afsli'ght distance-belo'w-said pivotepin to form ar`- shortarmi totheilever; To= this'short arm is pivotedallinkif, said link.being pivotally con'- crank'is-mounted on as'haft63,saidshaftbeingisupported inbea'rin'gs 64.'. Also mounted@ on theshaftare'twofarmsA 6565, which;v

arms are'pivotally lr connected tof ai collar 66",

whichcoll'ar is 'fitted' in anannular--groove 67, l

formed-inl the sleeve'- 18;"` The collarthereforef does not' inteifer'e'with the rotation' ofi the sleeve, but yet'.` through the describedconnection withy the lever is adaptedto slide the sleeve longitudinally4when said le# ver-601is manipulated-.` In theoperationof` v this A partofi my invention the two frictionv wheels=24fandi25are ofcourse adjustedso asto beout of frictionalqengagement and-,be

"shaft 1&4', and the rotation-of shaft14 rotates the friction-wheel 22,and' said,friction-'wheel` iasthis latter isf-ast on sleevev 18 thesaid! jsleeveg is rota-ted, andI pinion. 19 isl consequently rotated,and thefrotation of this 1pintoothedwheel 23-causes a5 rotation ofthesetslowly, and: consequently there is aslow forward' movement of theknees. After thel knees have-been adjusted forwardly to the completedthe-pawls 44' are thrown outof en'l gagemen-t with thev ratchet-wheel45. The lever 60isrn'ow turned to the right of Fig. .2, andthislwillYhave theeffect of moving the ,sleeve 18` to `the left, and hencev thrustfriofrfiction-wheel 17. The course ofrotation` under these conditionsislas follows: Thero-A :tation of beveled pinion 15 rotates beveledpinion, 1&6, which is' loose-*onl shaft 14, and

l eled wheel li-thefsaid male friction-'wheel rot-atesfthefemalefriction-wheel-20`,i and as said female friction-wheelfisfast to or apart of! the sleeve 18' the said sleeve is thereby ro-4 tated", andrits-rotation is: transferred to'- the set-shaft throughl the medium-l ofthe inter- ;'meshingz' gears `19- and;23. Through Vthis* quite rapidly,and hence the" knees are' r'e turned quickly tothe desired position.

`Sand described' between the crank 27 of the :main shaft 14 andthe'crank: 40 of the rock I@shaft-41` possesses considerable advantage,in asmuch as it provides against' undue or eX- cessivestrains; Forinstance, in theform of iconstructionillustratedinmy application'forforfsawmi'lls, filed February 20, 1902, Serial No. 94,930,and1 allowedkOctober 24, 1903, there vis"considerable strain, when the rocksliaftis'` actuatedby` the particular connection-'shown finsa'id applicationbetween the mainfshaft and the-rock-shaft.` Under the presentconstruction thestrains are greatly reduced and yaresubstantiallyalike'at all timesno matter what may beA the position of vionthroughitsy meshing engagement with'fthe as-the male frictionewheel 17isf fast to'bev-a cou'rse of rotation the set-shaftl is rotatedy lLetters Patent for improvementsy lin set-works thereby prevented fromrotating the set'- y 1'2 meshing with` beveled gear'y 13 rotates fin-1turni-rotatesfemale friction-wheel 21, and

shaft .9,1v This set-shaft ,is thereby rotated required.' extent and thecuttingl operation' tion-wheel?2() into frietional1 engagement withy IIOA The particular connection herein show-n" IZO ' crank 40.

the crank-arm 40. As illustrative `of this feature of the invention, itwill be supposed that the crank-pin 29 is in its lowest position in thesegmental slot 31 and the crank 27 is at its rearward dead-center. Atsuch osition of the parts the said pin will register with the crank 40,and the parts are thus properly positioned for setting the mechanism forcutting a certain thickness of board. The lever 35 is now swung to theproper position or notch of the segment, and this movement is eectedwithout any movement whatever being imparted to either crank 27 or theIf the main shaft 14 is next rotated in a direction, say, to the left,this will have the effect of moving the pivot-pin 29 upwardly in theslot 3l and will tend to bring the pivot connecting the arms of theanglejoint downwardly, or, in other words, straighten out theangle-joint, and this in turn will force the crank 40 downwardly, or tothe left, and consequently the strain is very much relieved. It willalso be obvious that if the rotation of the main shaft be to the rightinstead of to the left a rocking motion will likewise be communicated tothe rock-shaft without undue strains being occasioned. In my pendingapplication, hereinbefore referred to, the strains are necessarilygreatest when the eccentric therein shown and described is at itseXtreme right-hand position, and the log is then fed toward the saw bythe rotation of the set-shaft through the connection between the mainshaft, rockshaft, and set-shaft.

What I claim as my invention is- 1. In sawmill set-works, thecombination of a main shaft, a set-shaft, a rock-shaft, mechanismbetween the main shaft and the rock-shaft, means for throwing saidmechanism into operation so as to convert the rotation of the main shaftinto rocking movement of the rock-shaft, and means for automaticallythrowing said mechanism out of operation after the main shaft has beenrotated to a certain extent, in order to stop the rocking movement ofthe rock-shaft, and mechanism between the rock-shaft and the set-shaftand adapted for converting the rocking movement of the rock-shaft into arotary motion of the set-shaft,

2, In sawmill set-works, the combination of a main shaft, a set-shaft, arock-shaft, lever-controlled mechanism between the main shaft and therock-shaft so constructed that when said lever is given an initial turnin one direction the said mechanism is thrown into operation so as toconvert the rotation of the main shaft into a rockng movement of therock-shaft, and means for automatically throwing said mechanism out ofoperation, after the main shaft has been rotated to a certain eXtent, inorder to stop the rocking movement of the rock-shaft, and mechanismbetween the rock-shaft and the set-shaft and 'adapted for converting therocking movement of the rock-shaft into a rotary motion of theset-shaft.

8. In sawmill set-works, the combination of a main shaft, a set-shaft, acrank loosely mounted on the main shaft, clutch mechanism for clutchingthe crank to the main shaft, means for operating said clutch mechanismfor effecting the clutching of the crank to the main shaft, mechanismconstructed to automatically stop the crank and unclutch the same fromthe main shaft, after said crank has revolved a certain distance, arock-shaft, a connection between the rock-shaft and the crank of themain shaft, and mechanism between the rock-shaft and the set-shaft andadapted for converting the rocking movement of the rock-shaft into arotary motion of the set-shaft.

4. In sawmill set-works, the combination of a main shaft, a set-shaft, acrank loosely mounted on the main shaft, clutch mechanism for clutchingthe crank to the main shaft, means for operating said clutch mechanismfor effecting the clutching of the crank to the main shaft, mechanismconstructed to automatically stop the crank on the dead-center andunclutch the same from the main shaft, after said crank has revolved acertain distance, a rock-shaft, a connection between the rock-shaft andthe crank of the main shaft, and mechanism between the rock-shaft andthe set-shaft and adapted for converting the rocking movement of therock-shaft into a rotary motion of the set-shaft.

5. In sawmill set-works, the combination of a main shaft, a crankloosely mounted on the main shaft, an operating-lever, clutch mechanismcontrolled by said lever and adapted when an initial movement is givento the lever for clutching the crank to the main shaft, mechanismcarried by the lever and constructed to automatically stop the crank andunclutch the same from the main shaft, after said crank has revolved acertain distance, a rock-shaft, a connection between said rock-shaft andthe crank oi the main shaft, and mechanism between the rock-shaft andthe set-shaft and adapted for converting the rocking movement of therock-shaft into a rotary motion of the set-shaft.

6. In sawmill set-works, the combination of a main shaft, fast and looseclutches carried by said shaft, the loose clutch being provided with acrank, means for throwing said clutches into engagement, mechanism forautomatically throwing the clutches out of engagement after the crankhas revolved a certain distance, a rock-shaft, a connection between saidshaft and the crank of the main shaft, and mechanism between therockshaft and the set-shaft and adapted for converting the rockingmovement of the rockshait into a rotary motion of the set-shaft.

7. In sawmill set-works, the combination IOO thereto by the main shaft,and a connection between the variablespeed-transmitting mechanism andthe set-shaft for transferring the respective fast and slow rotations ofsaid variable-speed-transmitting mechanism to the set-shaft, in order toproduce by the slow rotation, a slow advance movement of the knees, andto produce by the reverse fast rotation a fast return movement of theknees.

13. In a sawmill set-works, the combinax tion of a main shaft, means fordriving the main shaft, a set-shaft, variable-speed-transmittingmechanism, a lever, a connection between the lever and thevariable-speed-transmitting mechanism, whereby when the lever isoperated in one direction, the variablespeed-transmitting mechanism isconnected to the main shaft, and when the lever is operated in theopposite direction the variablespeed-transmitting mechanism isdisconnected from the main shaft, the said variablespeed-transmittingmechanism when connected to the main shaft adapted to have the rotationof the main shaft imparted thereto, means, when thevariable-speed-transmitting mechanism isdisconnected from the mainshaft, for rotating said mechanism independently of and at a relativelyfaster rate of speed than the speed of rotation imparted thereto by themain shaft, and a connection between the variable-speed-transmittingmechanism and the set-shaft for transferring the respective fast andslow rotations of said variable-speed-transmitting mechanism to theset-shaft, in order to produce by the slow rotation a slow advancemovement of the knees, and to produce by the reverse fast rotation afast return movement of the knees.

14. In sawmill set-works, the combination of a main shaft, means forrotating the same at a relatively slow rate of speed, a set-shaft, kneesoperated by said set-shaft, variablespeed-transmitting mechanism mountedon the main shaft, means for clutching and unclutching thevariable-speed-transmitting mechanism to the main shaft, said mechanismwhen clutched to the main shaft having the slow rotation of the mainshaft imparted thereto, mechanism adapted for rotating thevariable-speed-transmitting mechanism rapidly when said mechanism isunclutched from the main shaft, and a connection between thevariable-speed-transmitting mechanism and the set-shaft for transferringthe respective slow and fast rotations of saidvariablespeed-transmitting mechanism to the setshaft, in. order toproduce by the slow rotation a slow advance movement of the knees, andto produce by the reverse fast rotation a fast return movement of theknees.

15. In sawmill set-works, the combination of a main shaft, means fordriving the same at a relatively slow speed, a set-shaft knees operatedthereby, variable-speed-transmitting mechanism, means for rotating saidvariablespeed-transmitting mechanism from thelmain shaft so as topartake of the relatively slow speed of said main shaft, means forrotating said set-shaft-operating mechanism independently of the mainshaft and at a quicker speed of rotation, and a connection between thevariable-speed-transmitting mechanism and the set-shaft for transferringthe respective slow and fast rotations of saidvariablespeed-transmitting mechanism to the setshaft, in order toproduce by the slow rotation a slow advance movement of the knees, andto produce by the reverse fast rotation a fast return movement of theknees.

16. In sawmill set-works, the combination of a main shaft, means fordriving the same, a rock-shaft, a set-shaft, knees operated by theset-shaft, a connection between the main shaft and the rock-shaft, meansfor throwing said comiection into operation, said means being soconstructed that when thrown into operation the rotary motion of themain shaft is converted into a rocking motion of the rock-shaft, meansfor throwing said connection out of operation so as to prevent therotation of the main shaft from imparting a rocking motion to therockshaft, a connection between the rock-shaft and the set-shaft forconverting the rocking motion of the rock-shaft into a rotary motion ofthe set shaft, set shaftoperating mechanism for rotating the set-shaftwhen the driving connection between the main shaft and the rock-shaft isout of operation, said set-shaft-operating mechanism when operated inone direction causing a slow rotation of the set-shaft in order to causea slow advance of the knees, and when operated in the opposite directioncausing a rapid return movement of the knees.

17. In sawmill set-works, the combination of a driving-shaft having twopinions thereon, a main shaft having a gear and a pinion thereon, thepinion being loose on the main shaft andv the gear boing fast on saidmain shaft, and said gear and pinion being engaged respectively by thepinions of the driving-shaft, a clutch member rigid with the loosepinion of the main shaft, another clutch member fast on the main shaft,a sleeve loosely surrounding the main shaft, said sleeve provided atopposite ends with clutch members adapted to be brought into engagementwith either of the other clutch members, and said sleeve providedintermediate of its clutch members, with a toothed gear, means forsliding the sleeve longitudinally on the main shaft, and a set-shaftprovided with a toothed wheel in mesh with the toothed gear of thesleeve.

18. In sawmill set-works, the combination of a main shaft, a crank onthe main shaft, a rock-shaft, a set-shaft, mechanism between therock-shaft and the set-shaft for converting the rocking movement of therock-shaft IOO into a rotarv movement of' the set-shaft, a

crank on the rock-shaft, a regulatingelever, a

connection between the lever and the cranks of the rock-shaft and of themain shaft respectively, said ,connection consisting of a knuckle-jointcomprising arms pivoted together at their inner ends, and the outer endof one pivotally connected to the lever, and the outer endof the otherpivotally connected to the crank of the rock-shaft, radial bars pivotedtogether,` and one of said bars having its other end pivoted to a fixedpoint, and the other bar pivotedat its other end to the pivot of theknuckle-joint, and a link connected at one end tothe pivot ofythe-radial bars andl at its other end to the crank for thei main shaft.

19. In sawmill set-Works, the combination of a Xed part provided With asegmental slot; a main shaft, a rock-shaft, a crank on the rock shaft, acrank on the main shaft,

a set-shaft, mechanism between the rookshaft and the set-shaft forconverting the rocking mov ement of the rock-shaft into a rotarymovement ofthe set-shaft, a regulating-y lever, a connectionbetween theregulating-- lever and the cranks of the rock-shaft and of crank of therock-shaft, radial bars pivoted together, and one of said bars havingits 815,665 l i l I7 other end pivoted to a -xed point, and the otherbar pivoted at its other end to the pivot of the angle-joint, and a linkpivotally connected at one end to the pivot of the radial bars and atits other endk to the crank of the main shaft.

20. In sawmill set-Works, the combination of a frame Vprovided With asegmental slot, a main shaft, a crank on the main shaft, a setshaft,mechanism between the rook-shaft and the set-shaft for converting therocking motion of the rock-shaft into a rotary motion of the set-shaft,a regulating-lever, a connection between the regulating-lever and thecranks of the rock-shaft and of the main shaft, respectively, saidconnection consisting of a knuckle-joint comprising arms pivoted t0-gether at their inner ends and the outer end of one pivotally connectedto the lever and the outer end of the other pivotally connected to thecrank of the rock-shaft, radial bars pivoted together, the pivot Workingin sa1dbars having its other end pivoted to a iixed point, and the otherbar pivoted at its other end'to the pivot of the angle-joint, and

l the segmental slot of the frame, and one of a link pivotally connectedat one/ end to the pivot of the radial bars and at its other end to thecrank of the main shaft.

In testimony whereof I aflix my signature in presence of tWo Witnesses.

THEODORE S. WILKIN.

